The rules are simple. You have to start your sentence with the next letter of the alphabet.
I will start with U.
Understand, you do.
Very good idea
wally went to the store.
X-Factor had not crossed his mind.
Yellow bricks were on the floor
Zebras were prancing along the highway
After dark the zombies came out
But any light would hurt them, even flashlights.
consequently at daylight they vanished
Daylight harms their complexion.